Sports Research Magtein Magnesium L-Threonate Capsules – Magnesium Supplement for Memory, Focus & Cognition – Magnesium L Threonate Supports Brain Health, Sleep & Mood – 2000mg, 90 Capsules for Adults | ⭐ Flexiology.Store Recommended

$29.95

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Health Disclaimer: Always consult your doctor before using supplements. Results vary by individual.
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Description

Price: $29.95
(as of Oct 02, 2025 17:38:12 UTC – Details)

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Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 2.45 x 2.45 x 4.5 inches; 0.07 ounces
Item model number ‏ : ‎ FG377
Date First Available ‏ : ‎ January 1, 2022
Manufacturer ‏ : ‎ Sports Research
ASIN ‏ : ‎ B0B336FCWC
Best Sellers Rank: #2,400 in Health & Household (See Top 100 in Health & Household) #57 in Magnesium Mineral Supplements
Customer Reviews: 4.6 4.6 out of 5 stars 1,403 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
HIGHLY BIOAVAILABLE FORM: Magnesium L-threonate is the salt formed from mixing magnesium and threonic acid, a water-soluble substance derived from the metabolic breakdown of vitamin C. Easily absorbed, our magnesium L threonate capsules are used for their overall brain health benefits and may help support memory, focus, relaxation, mood, and cognition.
MADE WITH MAGTEIN: Magtein is a patented compound called threonic acid developed by a group of MIT researchers. Magtein is the only form that effectively crosses the blood-brain barrier and increases magnesium levels in the brain, which is critical for improving cognitive function. Our easy-to-swallow Magtein magnesium L-threonate veggie capsules are the easiest, most convenient way to add this essential mineral to your daily diet.
PREMIUM QUALITY: Sports Research takes pride in offering products that use only the best ingredients available so that you can have total peace of mind in the supplements that you are taking. Our magnesium supplement is verified non-GMO and free of gluten and gelatin.
MANUFACTURED IN THE USA: Our products are made in cGMP compliant facilities in the United States, using only the best ingredients from domestic & international origins. For us, it’s all about quality control – so you can have confidence in your dietary supplements. We offer ninety (90) magnesium pills for a one (1) month supply. Reap all the benefits of this powerful and healthy magnesium threonate supplement!
THE SPORTS RESEARCH DIFFERENCE: Created in 1980, Sports Research is a privately-owned business born from a passion for fitness, wellness, and healing. Our goal is to help people live their best lives through real, research-backed ingredients created for every body — inside and out. We’re fully dedicated to sourcing the highest quality products from around the world, backed by third party testing. We all deserve the best in our quest for healthy living. Our mission is to give you just that.

Customers say

Customers find the magnesium supplement improves sleep quality, making them feel rested in the morning, and appreciate its effectiveness, with one noting it works better than other magnesium types. The product receives positive feedback for cognitive function, helping with focus and thinking, and customers consider it good value for money. They find it easy to swallow, and one customer mentions it can cross the blood-brain barrier. While some customers report feeling better rested and more relaxed during the day, others experienced headaches. The size of the capsules receives mixed reviews, with some finding them decent while others consider them too large.

🌿 Expert Tip: Selected by our Flexiology Experts for quality & value.

⚠️ Disclaimer: Information is for educational purposes and not a substitute for medical advice. Consult your physician before use. Flexiology.Store is not responsible for any adverse effects.

Reviews (13)

13 reviews for Sports Research Magtein Magnesium L-Threonate Capsules – Magnesium Supplement for Memory, Focus & Cognition – Magnesium L Threonate Supports Brain Health, Sleep & Mood – 2000mg, 90 Capsules for Adults

  1. gabby

    So far, so good!
    I’ve been taking these supplements for about 8 weeks and the first change I noticed was improved quality of sleep. Before, I used to have trouble falling asleep and when I did, I’d be scrolling on my phone. (Terrible habit, I know!) I also used to wake up multiple times during the night, and this hasn’t happened at all so far. My Oura ring reports consistent good quality sleep for a minimum of 6 hours a night.Note: I’m not sure how this is affecting my memory as I have always had a very good memory.

  2. Stephanie Dobbs

    Quality Product
    I’m using this form of Magnesium (MgT) as part of a protocol to help my son’s brain heal from concussion. It’s the only form of magnesium that can cross the blood-brain barrier to get to the brain. It is supposed to enhance the connection between brain cells, help the brain adapt to change and strengthen existing connections and form new connections.1. 3rd party tested although I couldn’t find the company they use2. cGMP certified, which stands for Current Good Manufacturing Practices, refers to a set of regulations enforced by the FDA to ensure the safety, quality, and efficacy of products, particularly in the pharmaceutical, medical device, and food industries.3. Reasonable price

  3. Jay Christley

    Relief
    Great product. Helps with sleep

  4. Oreo

    Really works better than other magnesium types
    There are many magnesium types out there I thought I would give this one a try it is the only one that crosses the brain barrier.I do think it has helped with some age-related cognitive decline as well as the normal muscle cramping I highly recommend it.

  5. Diana Lynn

    Dreams
    Love these, I take 3 before bed for a great nights sleep.

  6. Amazon Customer

    Great Product
    Works well for me, this is definitely the best MG I have bought.

  7. Reviewer of Things

    Great quality for a fair price
    This is my go-to for Magtein now. I can feel it help to melt the stress away. Improves my focus and recall and the price is right.

  8. Michael L.

    Great supplements
    Works great, recommended by my family doc

  9. TIANJIAO YU

    Great product

  10. Cheryl

    I love the Sports Research products. This Magnesium is a must have in our house now. It’s effective, easy on the stomach and makes a noticeable difference in our lives, along with their other products that we use for supplements. I would order directly through their site if the shipped to Canada, but thank god we can get through Amazon.

  11. Amazon Customer

    Great product for sleep!

  12. Just me

    Great product to help with sleep! I was having trouble sleeping, thinking and overthinking. This gives me a great night’s sleep. I think my memory is also better now that I’m taking this. It is the only form of magnesium that crosses the blood-brain barrier. My sports doctor recommended this form of magnesium.

  13. Nman

    I’ve been trying to get better sleep lately, and someone recommended magnesium. I decided to try Sports Research Magtein Magnesium L-Threonate, and I’ve noticed a real difference! It seems to help me fall asleep faster and wake up feeling more rested. I’m not sure about all the science behind it, but I’m happy with the results.

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